Viruses may include of any of the following structures, EXCEPT: a. DNA   b. ribosomes   c. capsids   d. viral envelopes   e. RNA

Explain the Size comparison of viruses with a eukaryotic cell (yeast) and bacteria.

Select all the correct statement(s) about viruses: Viruses exist in one phase both extracellularly and intracellularly Some viruses are non-obligate parasites Any viral genome can be directly translated by the host cell's translation machinery Viruses can be classified based on their nucleic acid and shape

what are the chemical composition of a virus and structures that make up a naked and an enveloped viron. Discuss the basic shapes of virions and include: symmetrical, asymmetrical and  tailed.  How do viroids and prions differ from virions?  Include in your answer the major diseases associated with prions and viroids and their economic impact to our food supply.